Anonymous 1) Eventually, mankind might destroy the world. 2) He wears this kind of shirt. 3) I am uncertain as to Tim's opinion on this.
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Anonymous1) Eventually, mankind might destroy the world.Those sentences are all grammatically correct. However, there's a problem with thissentence.
2) He wears this kind of shirt.
3) I am uncertain as to Tim's opinion on this.
4) Television is the medium he enjoys most.